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ID 33107
file
title alternative
Community contribution research in Idebara area in Kita-Hiroshima Town, Hiroshima Prefecture : Field investigation of sediment-related disaster and trial rainfallobservation for disaster prevention by residents themselves <Articles>
creator
NDC
Construction. Civil engineering
abstract
Sediment-related disasters occurred two times in Idebara area in Kita-Hiroshima Town, Hiroshima Prefecture. This area is covered by weathered granite and rhyolite, and located around the watershed of Idebara-river, which is one tributary of the most upper region of Gonokawa-river. Since the disaster in 2006, some investigation were executed to become clear a danger degree of sediment-related disasters, and to make up some countermeasures for disaster prevention and mitigation. According to this investigation, debris-flows occurred repeatedly in a few sub-watersheds and a very dangerous sub-watershed, where a new debris-flow would occur in near future, was detected. There are a lot of debris-materials in the area, which were composed of some sediment transported by past slope-failures and debris-flows. The surfacesoil is very wet and trees on it are disorderly inclined. These conditions of the investigated area and the importance of rainfall information were explained to the residents in Idebara. After the explanation meeting, a trial rainfall observation by residents themselves was started. It was verifi ed that this system was very functional and useful for people there through the torrential rainfall in July, 2010.
journal title
Bulletin of the Graduate School of Integrated Arts and Sciences, Hiroshima University. II, Studies in environmental sciences
volume
Volume 5
start page
41
end page
48
date of issued
2010-12-31
publisher
広島大学大学院総合科学研究科
issn
1881-7696
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2010 Graduate School of Integrated Arts and Sciences, Hiroshima University. All rights reserved.
department
Graduate School of Integrated Arts and Sciences
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